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A student believes that the average grade on the final examination in statistics is at least...

A student believes that the average grade on the final examination in statistics is at least 85. She plans on taking a sample to test her belief. The correct set of hypotheses is

A.

H 0 : μ < 85     

H a : μ >=  85

B.

H 0 : μ < 85     

H a : μ > 85

C.

H 0 : μ>= 85     

H a : μ < 85

D.

H 0 : μ > 85     

H a : μ <  85
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Answer #1

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The correct set of hypothesis Ho : u <85 option A el 7185 Ha :

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